Chevin Research A-series schematic

[mb1]

chevin oscillator

Hello ,
you have schematic or a picture showing the parts for the chevin oscillator module (the circuit contained in the aluminum casing) mine is burnt so i cant distinquish which and where zener diodes are placed

thanks in advance

 

[gpapag]

Schematic for A6000
http://www.schematicsunlimited.com/c/chevin/chevin-a6000-amplifier-service-manual

Chevin amplifiers User Manual
http://www.ctxd.com/items/chevin.pdf

George

 

[Forman313]

I just checked most of the components on my A2000, and they seem to be ok, so im going to give it a try.

The ting is, the PCB with softstart and rectifier does not look good so im going to remove it and use a softstart module and a rectifier bridge. But im not familiar with this kind of PSU.
Does it really require that one of the mains AC wires are connected to 0v ?

 

[Forman313]

Hello ,
you have schematic or a picture showing the parts for the chevin oscillator module (the circuit contained in the aluminum casing) mine is burnt so i cant distinquish which and where zener diodes are placed

thanks in advance

I realize these pics arent much help.. nice paint job... ut I can try some measurements if possible. I have a feeling the voltage is somewhere around 350v ? I have never messed around with SMPS before, so I know very little about them..

Is it possible to measure a zener without high voltage running trough it?



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Thanks alot Chevin .. its a 20 year old unit. What does it matter if you release the schematic or even better, a service manual.

 

[davidcab]

Mosefet = ECF10N25 see Profusion